An Ultra Low-Noise CMOS Operational Amplifier with Programmable Noise-Power Trade-Off

Conference Paper · October 2006with27 Reads
DOI: 10.1109/ESSCIR.2006.307607 · Source: IEEE Xplore
Conference: Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European


    A programmable operational amplifier (OpAmp) concerning noise and power consumption is described. Key design issues for achieving programmability of a preselected OpAmp architecture are discussed. Experimental results for a 0.35 mum CMOS OpAmp show either ultra low noise of 2 nV/radicHz or low power consumption of 140 muW. The OpAmp remains stable over the whole range of programmability